Hi all,
The record upfield chemical shift for proton is -50.5ppm, reported in the
book Multinuclear NMR (1987) edited by John Mason. Have you ever observed or
noticed even more upfield shift? Your input will be highly appreciated!
Guangyu
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Guangyu Li
Manager, Associate Professor
NMR Facility
Shanghai Institute of Organic Chemistry
Chinese Academy of Sciences
354 Fenglin Road
Shanghai 200032 China
Telephone: 86-21-54925012
Fax: 86-21-54925039
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Received on Wed Dec 03 2008 - 19:38:32 MST